package com.xiemu.learning.mybatisorder.service.impl;

import com.xiemu.learning.mybatisorder.entity.TOrderItem;
import com.xiemu.learning.mybatisorder.dao.TOrderItemDao;
import com.xiemu.learning.mybatisorder.service.TOrderItemService;
import org.springframework.stereotype.Service;

import javax.annotation.Resource;
import java.util.List;

/**
 * (TOrderItem)表服务实现类
 *
 * @author makejava
 * @since 2021-04-15 11:50:14
 */
@Service("tOrderItemService")
public class TOrderItemServiceImpl implements TOrderItemService {
    @Resource
    private TOrderItemDao tOrderItemDao;

    /**
     * 通过ID查询单条数据
     *
     * @param id 主键
     * @return 实例对象
     */
    @Override
    public TOrderItem queryById(Long id) {
        return this.tOrderItemDao.queryById(id);
    }

    /**
     * 查询多条数据
     *
     * @param offset 查询起始位置
     * @param limit 查询条数
     * @return 对象列表
     */
    @Override
    public List<TOrderItem> queryAllByLimit(int offset, int limit) {
        return this.tOrderItemDao.queryAllByLimit(offset, limit);
    }

    /**
     * 新增数据
     *
     * @param tOrderItem 实例对象
     * @return 实例对象
     */
    @Override
    public TOrderItem insert(TOrderItem tOrderItem) {
        this.tOrderItemDao.insert(tOrderItem);
        return tOrderItem;
    }

    /**
     * 修改数据
     *
     * @param tOrderItem 实例对象
     * @return 实例对象
     */
    @Override
    public TOrderItem update(TOrderItem tOrderItem) {
        this.tOrderItemDao.update(tOrderItem);
        return this.queryById(tOrderItem.getId());
    }

    /**
     * 通过主键删除数据
     *
     * @param id 主键
     * @return 是否成功
     */
    @Override
    public boolean deleteById(Long id) {
        return this.tOrderItemDao.deleteById(id) > 0;
    }
}